Keerthana S K is an Indian singer from Calicut who mainly works in the Malayalam film and music industry. She is a participant in various musical reality shows like Munch Star Singer, Mylanchi Season 3, Zee Tamil Sa Re Ga Ma Pa, and the winner of Mylanchi Season 3 aired on Asianet, and a semifinalist of Zee Tamil Sa Re Ga Ma Pa. Keerthana was born in Calicut, Kerala.